TDA1574 Просмотр технического описания (PDF) - Philips Electronics
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TDA1574 Datasheet PDF : 11 Pages
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Philips Semiconductors
Integrated FM tuner for radio receivers
Product specification
TDA1574
PARAMETER
Narrowband threshold
at V3-4 = 2 V; V12-4 = 550 mV
at V3-4 = 2 V; V12-4 = 450 mV
A.C. characteristics (fi = 98 MHz)
Input impedance
Wideband threshold (r.m.s. value)
(see figures 2, 3, 4 and 5)
at V12-4 = 0,7 V; V18-4 = VP/2; I18 = 0
Oscillator output buffer (pin 9)
D.C. output voltage
Oscillator output voltage (r.m.s. value)
at RL = ∞; CL = 2 pF
at RL = 75 Ω
D.C. output impedance
Signal purity
Total harmonic distortion
Spurious frequencies
at EMF1 = 0,2 V; RS1 = 50 Ω
Electronic standby switch (pin 11 )
Oscillator; linear i.f. amplifier; a.g.c.
at Tamb = −40 to + 85 °C
Input switching voltage
for threshold ON; V18-4 = ≥ VP−3 V
for threshold OFF; V18-4 = ≤ 0,5 V
Input current
at ON condition; V11-4 = 0 V
at OFF condition; V11-4 = 23 V
Input voltage
at I11 = φ
SYMBOL MIN. TYP. MAX. UNIT
V18-4
−
−
1
V
V18-4
VP-0,3 −
−
V
R3-4
C3-4
−
4
−
kΩ
−
3
−
pF
EMF2rms −
V9-4
−
V9-4(rms)
−
V9-4(rms)
30
R9-15
−
THD
−
fS
−
17
−
6,0
−
110
−
50
−
2,5
−
−15 −
−35 −
mV
V
mV
mV
kΩ
dBC
dBC
V11-4
V11-4
−I11
I11
V11-4
0
−
3,3
−
−
−
−
−
−
−
2,3
V
23
V
150 µA
10
µA
4,4
V
February 1985
7
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